<?php
namespace app\admin\controller;

use think\Controller;

class Index extends Controller
{
    public function index()
    {
        return '<style type="text/css">*{ padding: 0; margin: 0; } div{ padding: 4px 48px;} a{color:#2E5CD5;cursor: pointer;text-decoration: none} a:hover{text-decoration:underline; } body{ background: #fff; font-family: "Century Gothic","Microsoft yahei"; color: #333;font-size:18px;} h1{ font-size: 100px; font-weight: normal; margin-bottom: 12px; } p{ line-height: 1.6em; font-size: 42px }</style><div style="padding: 24px 48px;"> <h1>:)</h1><p> ThinkPHP V5<br/><span style="font-size:30px">十年磨一剑 - 为API开发设计的高性能框架</span></p><span style="font-size:22px;">[ V5.0 版本由 <a href="http://www.qiniu.com" target="qiniu">七牛云</a> 独家赞助发布 ]</span></div><script type="text/javascript" src="http://tajs.qq.com/stats?sId=9347272" charset="UTF-8"></script><script type="text/javascript" src="http://ad.topthink.com/Public/static/client.js"></script><thinkad id="ad_bd568ce7058a1091"></thinkad>';
    }

    public function taobao() {
        dump($this->getip());
        return $this->fetch('index:index');
    }
    function getip(){
        foreach (array(
                     'HTTP_CLIENT_IP',
                     'HTTP_X_FORWARDED_FOR',
                     'HTTP_X_FORWARDED',
                     'HTTP_X_CLUSTER_CLIENT_IP',
                     'HTTP_FORWARDED_FOR',
                     'HTTP_FORWARDED',
                     'REMOTE_ADDR') as $key) {
            //会过滤掉保留地址和私有地址段的IP，例如 127.0.0.1会被过滤
            if (array_key_exists($key, $_SERVER)) {
                foreach (explode(',', $_SERVER[$key]) as $ip) {
                    $ip = trim($ip);
                    //也可以修改成正则验证IP
                    if ((bool) filter_var($ip, FILTER_VALIDATE_IP,
                        FILTER_FLAG_IPV4 |
                        FILTER_FLAG_NO_PRIV_RANGE |
                        FILTER_FLAG_NO_RES_RANGE)) {
                        return $ip;
                    }
                }
            }
        }
        return null;
    }
}
